What is the responding variable in this experiment? O A. The circumference of the balloon
O B. The amount of yeast placed in the balloon
O C. The amount of water placed in the balloon
O D. The temperature of the water in the balloon

Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation. a. false b. true

Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth

Which characteristics describe a spiral galaxy?